June 13 th. Discuss Syllabus Introduction to Chemistry Units of Measurement Conversions.
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Transcript of June 13 th. Discuss Syllabus Introduction to Chemistry Units of Measurement Conversions.
LECTURE 1
June 13th
Today’s Agenda
Discuss Syllabus
Introduction to Chemistry
Units of Measurement
Conversions
Syllabus
Instructor: Chad Cockrum
Lecture: Section 200 – M and W, 10:00 a.m. – 12:00 p.m. Section 201 – M and W, 1:00 p.m. – 3:00 p.m. Lab Experiments: Section 200 – F, 10:00 a.m. – 3:00 p.m.
Section 201 – F, 1:00 p.m. – 3:00 p.m. E-Mail: [email protected]
Study Hall: Monday, 7:45 p.m. – 9:45 p.m.
Instructor Assistants: Jonathan Taylor and Kelly Waters
Syllabus
Grading Policy:
Participation: 10%- I expect you to engage in classroom discussions and
activities, as well as helping your group members answer in class questions and assignments. Sleeping in class, talking with your classmates when not permitted, or any form of destructive behavior will result in a lower grade.
Exams: 30%- There will be two exams: A midterm and a final (each
worth 15%). The final will be cumulative with more emphasis on the second half of the summer’s material.
Syllabus
Labs: 15%- There will be 3 labs throughout the summer. I will grade
you on your ability to carry out the lab procedure (Safety, Behavior, Preparation, etc.)
Homework: 25%- All homework assignments will be given specific due
dates. For each day that the assignment is late, you will lose 10% of the assignment’s grade.
Quizzes: 15%- Before the class lecture begins, there will be a small quiz
consisting of a couple questions that cover the material from the previous class. These will be quick assessments of your effort.
Syllabus
100% - 90% A89% - 80% B79% - 70% C69% - 60% D59% - 0 % F
Required Materials:
- Non-programmable scientific calculator- Spiral Ring Notebook or Folder- Internet Access Daily (To download powerpoints)
Syllabus
Other:
- No food or drink in labs- No cell phones in labs
*** Come to class prepared!- Print out powerpoint slides before class.- Make sure you have reviewed the previous
material.- Be ready to learn Chemistry!
Introduction to Chemistry
What is Chemistry???
The science that deals with the composition and properties of substances and various elementary forms of matter.
Basically, the study of matter and its properties.
Introduction to Chemistry
What do Chemists do?
Study subatomic particles for research or even philosophical reasons.
Study the reactions and synthesis of different compounds.
Study how the chemicals in the atmosphere are affecting our daily lives.
Find ways to better our daily lives in general!
Units of Measurement
There are many units, but you will only have to know the following.
Mass = Grams (g) Volume = Liters (L) Amount = Moles (mol) Length = Meters (m) Temperature = Kelvin (K)
Conversions
Conversions are arguably the most difficult concept in beginner’s Chemistry.
We are going to learn basic conversions, but keep in mind that you will come across more complex conversions later. So master them now!
Conversions can be used to change the scale of a base unit or to change between types of units.
Conversions
Steps:
1. Position units in a way so that everything is cancelled except the unit you want to end with.
2. Visualize which units are smaller and larger.
3. Figure out ratios and plug the numbers in.
4. Plug in starting amount and calculate.
Conversions
Let’s convert 10 grams to milligrams.
Step 1: Units
grams x milligrams grams grams x milligrams grams
Conversions
Step 2: Visualize
Using the Life Saver Sheet, we can determine that there are .001 (1x10-3) grams in 1 milligram. This is equal to 1000 (1x103)milligrams in 1 gram.
Since 1 milligram equals a fraction of a gram… which one is bigger?
Grams!!!
Conversions
Step 3: Ratios
grams x 1 milligram .001 grams (1x10-3) OR
grams x 1000 milligrams (1x103) 1 gram
Conversions
Step 4: Calculate
10 g x 1 mg = 10,000 mg .001 g (1x10-3)
10 g x 1000 mg (1x103) = 10,000 mg 1 g
Conversions
Now, try to convert 300 Megagrams to kilograms.
300 Mg x 1x106 g x 1 kg = 1 Mg 1x103 g
300,000 g
Next Class
Turn in Homework 1
Print out Powerpoint 2
We will be going over Density, Energy, Temperature, and Physical and Chemical Properites/Changes.
Website: http://cuubchemistry.wikispaces.com